Marstressing
马氏体应力; 马氏体应力淬火
🗣️ 情景例句
That sounds very nice. When will it be?
听起来真不错，什么时候呢？
Yes, this is Shen speaking.
是的，我姓沈。
The American president who fought for the freedom of slaves in the USA.
为美国奴隶的自由而战的美国总统。